The MATTER fabricator does not take scrap boxes so there seems to be some confusion in this thread with MASS fabricators - 2 completely different machines.
The set up for the MATTER fab on our server is as follows :
2x remote mystcraft quarries feeding into a single coloured ender chest >
Matching ender chest in overworld with electric engine pulling out >
BC pipe sorting system taking gravel, dirt and cobble down separate pipe network >
Pipe runs over the top of 3 barrels each with gravel, dirt and cobble in so we always have a full 64 stacks of each if we need any >
Diamond pipe after that splitting the surplus into 3 buffer chests each for gravel, dirt and cobble* >
Electric engines pulling out of those 3 into an iron pipe to a recycler with 8 overclockers and a hopper on top >
BC pipe continues past the top of the hopper and loops back round in case of too much product at one time, although never seen it need it (can never be too careful with BC pipes and overflowing items... ) >
Electric engine on recycler pumping out into a different colour ender chest >
Matching ender chest in mystcraft quarry world (eternal day, no weather) which has railcraft item loader cart** taking out the scrap and unloading it into an upgraded barrel >
Another railcraft item cart set up between scrap barrel and matter fab told to keep 64 scrap in matter fab at all times >
And another railcraft item cart between matter fab and another coloured ender chest which is linked back in the overworld factory where the uu-matter is piped out into the factory storage barrel.
The matter fabricator has a world anchor next to it and runs off 7x ultimate panels which provide it with a constant 3584 EU/t. This means it eats 3 pieces of scrap every 5 seconds and makes 1 uum every 2.5 minutes! You NEED 2 quarries running permanently in order to keep up with it's demand for scrap (or you could make a cobble gen of course).
* the reason for the 3 buffer chests for each item type is because the items flow into a single chest too fast and there's always something in the first slot so it never gets the opportunity to move onto the next slots.
** the railcarts are really an overly complex way of doing it, but even with the world anchor we were having random issues with the engines stopping working for unknown reasons which resulted in thousands of items on the ground. The railcarts work a lot more reliably once you set them up right.
The 7x ultimate panels came from mining in a dense ore world with silk touch picks on iridium ore. Finding 2 to 5 ore in a vein if you dig around it a bit soon gets you enough to make ultimate panels once you macerate it.
Before someone says all the above can be done much easier with RP2, I wholeheartedly agree, however we are running the beta pack here (no RP2) so have to work with BC pipes.
